<template>
    <div>
        <div style="margin: 10px 0">
            <el-input style="width: 200px" placeholder="请输入名称" suffix-icon="el-icon-search"
                      v-model="username"></el-input>
            <el-input style="width: 200px" placeholder="请输入邮箱" suffix-icon="el-icon-message"
                      class="ml-5" v-model="email"></el-input>
            <el-input style="width: 200px" placeholder="请输入地址" suffix-icon="el-icon-position"
                      class="ml-5" v-model="address"></el-input>
            <el-button class="ml-5" type="primary" @click="load">搜素</el-button>
            <el-button class="ml-5" type="warning" @click="reset">重置</el-button>
        </div>
        <div style="margin: 10px 0">
            <el-button type="primary" @click="handleAdd">新增<i class="el-icon-circle-plus-outline"></i>
            </el-button>
            <el-popconfirm
                    class="ml-5"
                    confirmButtonText='确定'
                    cancelButtonText='我再想想'
                    icon="el-icon-info"
                    iconColor="red"
                    title="您确定批量删除这些数据吗？"
                    @confirm="delBatch ">
                <el-button type="danger" slot="reference">批量删除<i class="el-icon-remove-outline"></i></el-button>
            </el-popconfirm>
            <el-upload action="http://localhost:8085/user/import" :show-file-list="false" :accept="xls"
                       :on-success="handleExcelImportSuccess" :on-error="handleExcelImportError"
                       style="display: inline-block">
                <el-button type="primary" class="ml-5">导入<i class="el-icon-bottom"></i></el-button>
            </el-upload>
            <el-button type="success" @click="exp" class="ml-5">导出<i class="el-icon-top"></i></el-button>
        </div>
        <el-table :data="tableData" border stripe :header-cell-class-name="headerBg"
                  @selection-change="handleSelectionChange">
            <el-table-column type="selection" width="55"></el-table-column>
            <el-table-column prop="id" label="ID" width="140">
            </el-table-column>
            <el-table-column prop="username" label="用户名" width="140">
            </el-table-column>
            <el-table-column prop="role" label="角色">

            </el-table-column>
            <el-table-column prop="nickname" label="昵称" width="120">
            </el-table-column>
            <el-table-column prop="email" label="邮箱">
            </el-table-column>
            <el-table-column prop="phone" label="电话">
            </el-table-column>
            <el-table-column prop="address" label="地址">
            </el-table-column>

            <el-table-column label="操作" width="200">
                <template slot-scope="scope">
                    <el-button type="success" @click="handleEdit(scope.row)">编辑<i class="el-icon-edit"></i>
                    </el-button>
                    <el-popconfirm
                            class="ml-5"
                            confirmButtonText='确定'
                            cancelButtonText='我再想想'
                            icon="el-icon-info"
                            iconColor="red"
                            title="您确定删除吗？"
                            @confirm="del(scope.row.id)"
                    >
                        <el-button type="danger" slot="reference">删除<i class="el-icon-remove-outline"></i>
                        </el-button>
                    </el-popconfirm>


                </template>
            </el-table-column>
        </el-table>
        <div style="padding: 10px 0">
            <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="pageNum"
                    :page-sizes="[5, 10, 15, 20]"
                    :page-size="pageSize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total"
            >
            </el-pagination>
        </div>
        <!-- Form -->
        <el-dialog title="用户信息" :visible.sync="dialogFormVisible" width="30%">
            <el-form label-width="80px" size="small">

                <el-form-item label="用户名">
                    <el-input v-model="form.username" autocomplete="off"></el-input>
                </el-form-item>
                <el-form-item label="角色" >
                    <el-select clearable  v-model="form.role" placeholder="请选择角色" style="width:100%">
                        <el-option v-for="item in roles" :key="item.name" :label="item.name" :value="item.flag">
                            <i :class="item.value">{{item.name}} </i><!--将图标和样式都展示出来-->
                        </el-option>
                    </el-select>
                </el-form-item>
                <el-form-item label="昵称">
                    <el-input v-model="form.nickname" autocomplete="off"></el-input>
                </el-form-item>
                <el-form-item label="邮箱">
                    <el-input v-model="form.email" autocomplete="off"></el-input>
                </el-form-item>
                <el-form-item label="电话">
                    <el-input v-model="form.phone" autocomplete="off"></el-input>
                </el-form-item>
                <el-form-item label="地址">
                    <el-input v-model="form.address" autocomplete="off"></el-input>
                </el-form-item>


                <!--<el-form-item label="活动区域" :label-width="formLabelWidth">
                    <el-select v-model="form.region" placeholder="请选择活动区域">
                        <el-option label="区域一" value="shanghai"></el-option>
                        <el-option label="区域二" value="beijing"></el-option>
                    </el-select>
                </el-form-item>-->

            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button @click="dialogFormVisible = false">取 消</el-button>
                <el-button type="primary" @click="save">确 定</el-button>
            </div>
        </el-dialog>
    </div>
</template>

<script>
    export default {
        name: "User",
        data() {
            return {
                tableData: [],
                total: 0,
                pageNum: 1,
                pageSize: 10,
                username: "",
                email: "",
                address: "",
                dialogFormVisible: false, /*默认不展示*/
                form: {},
                multipleSelection: [],
                headerBg: 'headerBg',
                roles:[],
            }
        },
        created() {//加载时触发
            /* //请求分页查询数据
             fetch("http://localhost:8081/user/page?pageNum=" + this.pageNum + "&pageSize=" + this.pageSize).then(res => res.json()).then(res => {
                 console.log(res);
                 this.tableData = res.data;
                 this.total = res.total;
             })*/
            this.load();

        },
        methods: {
            load() {
                /*request.get("http://localhost:8081/user/page?pageNum=" + this.pageNum + "&pageSize=" + this.pageSize+"&username="+this.username).then(res=>{*/
                this.request.get("/user/page", {
                    params: {
                        pageNum: this.pageNum,
                        pageSize: this.pageSize,
                        username: this.username,
                        email: this.email,
                        address: this.address,
                    }
                }).then(res => {
                    console.log(res);
                    //解析数据
                    this.tableData = res.data.records;
                    this.total = res.data.total;
                })
                /*//请求分页查询数据
                fetch("http://localhost:8081/user/page?pageNum=" + this.pageNum + "&pageSize=" + this.pageSize+"&username="+this.username).then(res => res.json()).then(res => {
                    console.log(res);
                    this.tableData = res.data;
                    this.total = res.total;
                })*/
                this.request.get("/role" ).then(res=>{
                    console.log(res)
                    this.roles=res.data
                })

            },
            reset() {
                this.username = "";
                this.email = "";
                this.address = "";
                this.load();
            },
            handleAdd() {
                //打开弹窗
                this.dialogFormVisible = true;
                this.form = {};

            },
            save() {
                this.request.post("/user", this.form
                ).then(res => {
                    if (res.data) {
                        this.$message.success("保存成功");
                        this.dialogFormVisible = false;//关闭弹窗
                        this.load();
                    } else {
                        this.$message.error("保存失败")
                    }
                });
            },

            handleEdit(row) {
                this.form = row;//将次行的数据付给表单
                this.dialogFormVisible = true;
                this.form = JSON.parse(JSON.stringify(row))  //可以解决编辑未确认就改变的问题
                // this.form = Object.assign({},row)  //将row拷贝到空对象中 解决没点确定数据改变的问题
            },
            del(id) {
                this.request.delete("/user/" + id).then(res => {
                    if (res.data) {
                        this.$message.success("删除成功");
                        this.dialogFormVisible = false;//关闭弹窗
                        this.load();
                    } else {
                        this.$message.error("删除失败")
                    }
                })
            },
            handleSelectionChange(val) {
                // console.log(val);
                this.multipleSelection = val;
            },
            delBatch() {
                let ids = this.multipleSelection.map(v => v.id)  //扁平化处理:将对象的数组[{},{},{}]==>处理成类似于[1,2,3]这样纯id的数组
                this.request.post("/user/del/batch", ids).then(res => {
                    if (res.data) {
                        this.$message.success("批量删除成功");
                        this.dialogFormVisible = false;//关闭弹窗
                        this.load();
                    } else {
                        this.$message.error("批量删除失败")
                    }
                })
            },
            handleSizeChange(pageSize) {
                // console.log(pageSize);
                this.pageSize = pageSize;
                this.load();
            },
            handleCurrentChange(pageNum) {
                // console.log(pageNum);
                this.pageNum = pageNum;
                this.load();
            },
            exp() {
                window.open("http://localhost:8085/user/export")
            },
            handleExcelImportSuccess() {
                this.$message.success("文件导入成功");
                this.load()
            }, handleExcelImportError() {
                this.$message.error("文件导入失败");
            }
        }
    }
</script>

<style>
    .headerBg {
        background: #eee !important;
    }
</style>